Finding the Fourth Proportional to 2,188.79, 3,284.43 and 801.94

Step by Step Solution

1. Step 1: Write the proportion equation
   2,188.79 : 3,284.43 = 801.94 : x
2. Step 2: Convert to fraction form
   2,188.79/3,284.43 = 801.94/x
3. Step 3: Cross multiply
   2,188.79x = 3,284.43 × 801.94
4. Step 4: Simplify right side
   2,188.79x = 2,633,904.58
5. Step 5: Solve for x
   x = 2,633,904.58/2,188.79
6. Step 6: Final answer
   x = 1,203.36